Double-acting stamp.



man

DOUBLE ACTING STAMP.

APPLICATION FILED JAN. 16, 1906.

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DOUBLE ACTING STAMP. APPLICATION FILED JAN. 16, 1906.

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min 47. .PATENTED FEB-(19, 1907. G. W. BEYNON & G. H. MAGKILLOP.

DOUBLE ACTING STAMP.

APPLICATION FILED IAN. 16, 1906.

4 SHEETS-SHEET 3.

WITNESSES ATTORNEYS PATBNTED FEB. 19, 1907. G. W. BEYNON & G. H. MAGKILLOP.

DOUBLE Acnmsnm. APPLICATION IILBD 11111.16, 1906.

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WITNESSES Map/L INVENTURS ATTORNEYS n45 clams Psrsas ca WASHINGTON, n c

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GEORGE WILLIAM BEYNON, or MORTIMER, AND GARDINER HENDERSON MAOKILLOP, or MAIDENHEAD, ENGLAND; SAID BEYNON ASSIGNOR TO GUSTAVE RICHARD BONNARD, or -LONDON,YENGLAND.

DOUBLE-ACTING STAMP.-

Specification of Letters Patent.

Application filed January 16, 1906. Serial No. 296,342.

No. 844,847. Patented Feb. 19, 1907.

To all whom, it may concern.

Be it known that we, GEORGE VVILLIAM BEYNON', a subject of the King of Great Britain and Ireland, residing at Mortimer vWest 'anduseful Improvements in Double-Acting '1 Stamps, of which the following is a specifica- This invention relates to apparatus for pulverizing, crushing, stamping, and other operations performed by a weight or Weights which is or are lifted and then allowed to fall,

in which apparatus rotating cams are used to bear on a tappet or on tappets on or in connection with the weight or-"weights to be lifted and then allowed to fall and inwhich a device is provided by which additional impulse is given to the weight or weights during its or their descents, so as to accentuate or increase the effect of the falling weight or weights by driving it or them positively downward, so

that the apparatus can be driven at a higher speed than it otherwise could be. 7

The object of the present invention is to provide-a paratus by means of which such additiona impulse is given in a very efficient manner during each descent of the weight or weights in machines in which two lifts are given to the weight or weights at each rotation of the shaft carrying the cams, so that the machine can be driven at much greater speed and with better effect, and a further object of this invention is to provide cams by which the weight orweights is or are lifted without initial objectionable shockwhen the cam first comes int-o contact with the tappet and so that the raising action of the cam is gradually discontinued before the cam leaves the tappet, so that the tappet has no appreciable upward momentum when the cam leaves it and there is no objectionable shock on the cam, and the apparatus works more smoothly and efliciently than hitherto.

We will describe, with reference to the accompanying drawings, the arrangement in accordance with this invention as applied to a stamp for crushing ores, from which its analogous applications will also be understood.

Figure 1 represents in front elevation, and Figs. 2 and 3 in vertical sections, respectively taken on the lines X and Y, a part of a stamping-battery, showing three stamp-heads, it being understood that one or any desired number can be used. Fig. 4 shows a pair of the lifting-cams separately, and Fig. 5 shows a pair of the supple inentary cams separately.

The stamp-heads 1 are each attached to or formed on the lower end of a stem 2, and a pair of lifting-cams 3 acts on the respective tappets 4, one of which is fixedto each stem, so that the stamps are lifted twice for each rotation of the shaft. I A pair of supplementary cams 5 acts through the .medium of a hinged lever on other tappets 6 to give the.

falling stamps additional downward impulse after each lift. The tappets/I and6 are fixed to the stems 2 at such distance apart that they do not interfere with the cams which are not to act upon them, and one shaft 7 is utilized for both the cams 3 and the cams 5, thus dispensing with much gear and greatly simplifying the construction and driving of the apparatus. n order to allow one shaft 7 tooarry both the cams 3 and the cams 5 without undue distance between the several stamp-heads, each pair of supplementary cams 5 acts on the tappets 6 through the intervention of a lover 8, centered on the rod 9, the cams 5 acting on the upper sides of these levers and the lower sides of the said levers acting on the tappets 6.

The supplementary cams 5 are each made of the curvatures shown, so that the cam begins to act gradually by a quick curving of the cam (from 14 to 15) and then acts- We are aware that it has been proposed to,

give a lift and a downward impulse by cams on the same shaft; but the arrangements which first comes into contact with the tappet 4 and also at the lower end or'part (12 to 13) which last leaves the tappet 4, the pertiencf the cam (that from 11 to 12) between the-afcresaid first and last pcrtitns being made with a flatter curving cr mere rapidrise, so that the stamps are; lifted mere rapidly during the peritd cf actisn from 11 to 12 than isthe case while. the parts. fromil'O to 11 and fr0m..12 to. l3are; in actitn. The lifting-carrsficrmed as described and shown, are applicable tostamps with crwithcut addi'tLnal-cams 5 and tappets 6.- In stampsv ftr. crushing cres it is desirable to givev arctary motitn to the stamp-head whilev it is raised, and the liftingrcamszfcrnied as aferesaid, give thisamotisn very: efficiently, althtugh the. said cams are also: applicable; in cases where such rotary motion is.not re-- quired' to-be givento the heads.

We, claim as. our inventit n.

1.3111 dcuble-acting stamp-machines: and the like, a stamp-head, a stem carrying the:

downwardeimpulse-giving cams.- bei-ng'adap ted-togi-ve, through the-other-tappet, a downwardimpulseat eachdescent cf the weight. 2. In double-acting stamp-machines and the like,1a stamp-head, a stemcarrying'thesame, two tappets arrangedv cn-gsaid stem 1n combinaticnwith a-pair ti lifting-cams and.a pair of downward-impulse-giving cams carried by one shaft, the lifting-cams adapted to act on one tappet, and the downward-impulse-giving cams adapted to act, in combinati'cn' with an intervening lever, upcn the other tappet, to'gi-ve a downward impulse at each descent cf the weight.

3. In dcuble-actin'g stamp-machinesand the like, a stamp-head ,ta.stem carrying the same, twe tappets arranged on said stem incornbinaticniw 1th apair cf lifting-cams and a.

pair. cf downward-impulse-giving cams car ried by one. shaft, thelifting eams being; adapted to act cn cne tappet and each cf'the', dow nward impulse-giiving cams having the.

pcrticnw hieh first acts madetf quick curvatureandthe partwhich fellows this made, withafiatter curvature, or quickerrise, the; said cams being adapted to act in combinaw tion with an intervening lever, upon the other tappet, at each-descent cf the; weight. Intestimcny w herecf we: have signedithis:

specification in the presence; of two subscrib- 5 ingiwitnesses; same, and two tappets arranged-Hon said. stein, in. cornbinatisnz, with apair ct lifting;- cams and'a pair cf downw ard-impullse-giving t cams carried by' one shaft, the. lifting-cams. beingadapted to act on (.116 tappet, and the,

GEO'R'GE WILLIAM BEYNON;v GARDINER HENDERSON MACKILIIOPJ.

Witnesses;

WILLIAM THOMAS RUsH'roN,

D. JAMESON. 4 

